Title: Acumulus Author: SIEL Acumulus Published: January 5, 2016 Last modified: November 4, 2025 --- Search plugins ![](https://ps.w.org/acumulus/assets/banner-772x250.png?rev=1330787) ![](https://ps.w.org/acumulus/assets/icon.svg?rev=1330787) # Acumulus By [SIEL Acumulus](https://profiles.wordpress.org/siel-acumulus/) [Download](https://downloads.wordpress.org/plugin/acumulus.zip) * [Details](https://pcd.wordpress.org/plugins/acumulus/#description) * [Reviews](https://pcd.wordpress.org/plugins/acumulus/#reviews) * [Installation](https://pcd.wordpress.org/plugins/acumulus/#installation) * [Development](https://pcd.wordpress.org/plugins/acumulus/#developers) [Support](https://wordpress.org/support/plugin/acumulus/) ## Description Over deze plugin. ### WooCommerce boekhouden plugin voor Acumulus The Acumulus plugin connects your Woocommerce store to the Dutch SIEL Acumulus online financial administration application. It can add your invoices automatically or via a batch send form to your administration, saving you a lot of manual, error- prone work. The Acumulus plugin: * Reacts to order status changes via actions. * Does have 4 admin screens: a register, settings, advanced settings, and a batch send screen. * Offers a meta box with an overview of the status of the invoice in Acumulus on the edit order screen. * Does not in any way interfere with the front-end UI. The Acumulus plugin assumes that: * You have installed [WooCommerce](https://wordpress.org/plugins/woocommerce/). * You have an account with [SIEL Acumulus](https://www.siel.nl/acumulus/), also see [Overview of webshop connections](https://www.siel.nl/acumulus/koppelingen/webwinkels/WooCommerce/). If not, this plugin is useless and will not do anything. ### Installation using composer and GitHub Note: this is only recommended for developers, not if you only want to use this plugin in your webshop. 1. Open a cmd prompt and go to the plugins folder: cd wp-content/plugins 2. Download the zip from https://github.com/SIELOnline/Acumulus-for-WooCommerce, either: 3. * The latest version: https://github.com/SIELOnline/Acumulus-for-WooCommerce/archive/ refs/heads/master.zip * A specific version, e.g.: https://github.com/SIELOnline/Acumulus-for-WooCommerce/ archive/refs/tags/7.6.5.zip 4. Extract the zip and rename the folder Acumulus-for-WooCommerce-[master|7.6.5] to acumulus 5. cd acumulus 6. composer update –no-dev Note this won’t install the test classes from WooCommerce and WordPress that are required by our own tests. Installing the test environment for this plugin is yet to be described here. ### Support See the [Acumulus forum](https://forum.acumulus.nl/index.php?board=17.0). ## Screenshots * [[ * Settings form * [[ * Advanced settings form * [[ * Batch form * [[ * Acumulus invoice status overview ## Installation 1. Install the plugin through the WordPress plugins screen directly or, alternatively, upload the plugin files to the `/wp-content/plugins/acumulus` directory manually. 2. Activate the plugin through the ‘Plugins’ screen in WordPress. 3. Go to the ‘Settings – Acumulus’ page (`wp-admin/options-general.php?page=acumulus_config`) to configure the plugin. 4. If you do not yet have an account with Acumulus, you can apply for one by clicking on the register now button. 5. Complete the (basic) configuration of the plugin. 6. Go to the ‘Settings – Acumulus advanced settings’ page (`wp-admin/options-general. php?page=acumulus_advanced`) to configure the plugin. 7. If you have set so, invoices for new orders are now automatically sent to your administration at Acumulus. 8. You can use the ‘Woocommerce – Acumulus’ page (`wp-admin/admin.php?page=acumulus_batch`) to send a batch of (older) orders to Acumulus. 9. To cater for specific use cases, the plugin does define some filters and actions, so you can intercept and influence the actions it performs. See the separate [filters.txt](https://plugins.svn.wordpress.org/acumulus/trunk/filters.txt) for more information. ## Reviews ![](https://secure.gravatar.com/avatar/f5041788d58b6424c980b15a35172270657401e6c77976b0f75703f019696bf0? s=60&d=retro&r=g) ### 󠀁[Top!](https://wordpress.org/support/topic/top-1749/)󠁿 [luisacarou](https://profiles.wordpress.org/luisacarou/) July 13, 2025 Nooit de moeite genomen om een review te schrijven. Maar het moest er toch een keer van komen, want ik heb Acumulus al bijna 10 jaar in gebruik naar volle tevredenheid! ![](https://secure.gravatar.com/avatar/f12660b980acee6b966fde630d902677d4cb9efe2a396d861a7835484e54c69d? s=60&d=retro&r=g) ### 󠀁[Het grote zwijgen](https://wordpress.org/support/topic/het-grote-zwijgen/)󠁿 [webwitnl](https://profiles.wordpress.org/webwitnl/) November 1, 2024 De Acumulus API was van de week uren down, en haalde de hele backend van wordpress onderuit. Ze hebben hierover helemaal niks gemeld, wat bizar is. Het moet bovendien dan niet de backend onderuit halen, maar ze menen zich ook al dagen in stilzwijgen te moeten hullen over dit bugreport. Dit is een totaal verkeerde instelling en maakt deze plugin onbetrouwbaar. ![](https://secure.gravatar.com/avatar/4eeb2218d3aa9bdd97931ceb0444f58d7d5ee462e168a7479cbea59eafd0097e? s=60&d=retro&r=g) ### 󠀁[De plugin werkt goed](https://wordpress.org/support/topic/vervelende-banner-komt-steeds-terug-maar-verder-ok/)󠁿 [ms100](https://profiles.wordpress.org/ms100/) March 14, 2024 De plugin werkt goed en wordt goed onderhouden ![](https://secure.gravatar.com/avatar/9b351b29bcd019c6127133fd6585db5e07bfbdf12dca3f3855292d8665664ff2? s=60&d=retro&r=g) ### 󠀁[Geweldig programma en support](https://wordpress.org/support/topic/geweldig-programma-en-support/)󠁿 [leonardm](https://profiles.wordpress.org/leonardmarchal/) December 2, 2023 Programma dat alles doet wat je nodig hebt. Gaat er ergens eens iets mis dan is de support geweldig! ![](https://secure.gravatar.com/avatar/028f79e14efaca7962fdc9a594b7ba252058048514ce4db459c95b6ebcdb3609? s=60&d=retro&r=g) ### 󠀁[Automatische facturatie in no-time geregeld](https://wordpress.org/support/topic/automatische-facturatie-in-no-time-geregeld/)󠁿 [Olivier](https://profiles.wordpress.org/ocjanssen/) March 21, 2023 Uitstekende plugin die precies doet wat ‘ie moet doen. Er zijn erg veel opties, dus het duurt ongeveer een half uurtje om alles in te stellen. Verder goed om te weten dat het e-mailadres waar vanuit facturen verzonden worden beperkt configureerbaar is in Acumulus. Desalniettemin uitermate tevreden, zeker in vergelijking met alternatieven die ik eerder heb gebruikt. ![](https://secure.gravatar.com/avatar/29197779e8b702204099fe45a430ef07848631c8730720e19d5bf4a3c1c3ede7? s=60&d=retro&r=g) ### 󠀁[Zoals je hoopt/je verwacht dat het werkt…](https://wordpress.org/support/topic/zoals-je-hoopt-je-verwacht-dat-het-werkt/)󠁿 [paulbas](https://profiles.wordpress.org/paulbas/) April 3, 2022 Behalve dat je toch ‘n tikje inzicht in boekhouden nodig hebt, zeker als je ook buiten NL verkoopt, is het erg toegankelijk/relatiev makkelijk… technisch zonder meer probleemloos. [ Read all 26 reviews ](https://wordpress.org/support/plugin/acumulus/reviews/) ## Contributors & Developers “Acumulus” is open source software. The following people have contributed to this plugin. Contributors * [ SIEL Acumulus ](https://profiles.wordpress.org/siel-acumulus/) “Acumulus” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/acumulus/contributors) for their contributions. [Translate “Acumulus” into your language.](https://translate.wordpress.org/projects/wp-plugins/acumulus) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/acumulus/), check out the [SVN repository](https://plugins.svn.wordpress.org/acumulus/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/acumulus/) by [RSS](https://plugins.trac.wordpress.org/log/acumulus/?limit=100&mode=stop_on_copy&format=rss). ## Changelog The Acumulus plugin exists for multiple eCommerce solutions and are all built on a common library. Most changes take place in that common library. Therefore, there’s only 1 changelog that is part of the library, see [changelog.txt](https://plugins.svn.wordpress.org/acumulus/trunk/vendor/siel/acumulus/changelog.txt). ## Meta * Version **8.7.0** * Last updated **5 months ago** * Active installations **300+** * WordPress version ** 5.9 or higher ** * Tested up to **6.8.5** * PHP version ** 8.1 or higher ** * Languages * [Dutch](https://nl.wordpress.org/plugins/acumulus/) and [English (US)](https://wordpress.org/plugins/acumulus/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/acumulus) * Tags * [administratie](https://pcd.wordpress.org/plugins/tags/administratie/)[boekhouding](https://pcd.wordpress.org/plugins/tags/boekhouding/) * [Advanced View](https://pcd.wordpress.org/plugins/acumulus/advanced/) ## Ratings 4.7 out of 5 stars. * [ 22 5-star reviews ](https://wordpress.org/support/plugin/acumulus/reviews/?filter=5) * [ 2 4-star reviews ](https://wordpress.org/support/plugin/acumulus/reviews/?filter=4) * [ 1 3-star review ](https://wordpress.org/support/plugin/acumulus/reviews/?filter=3) * [ 1 2-star review ](https://wordpress.org/support/plugin/acumulus/reviews/?filter=2) * [ 0 1-star reviews ](https://wordpress.org/support/plugin/acumulus/reviews/?filter=1) [Add my review](https://wordpress.org/support/plugin/acumulus/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/acumulus/reviews/) ## Contributors * [ SIEL Acumulus ](https://profiles.wordpress.org/siel-acumulus/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/acumulus/)