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Invoice fee surcharge on EE3

Posted: September 14, 2016 at 3:34 am


September 14, 2016 at 3:34 am


I need to add a surcharge fee for processing invoices. I have found some code for this at:

A couple of questions:
Is this code compatible with EE3?
Does the code get included in functions.php or if not where is it called from?

Anything else I should know?


  • Support Staff

September 14, 2016 at 4:31 pm

Hi there,

All of the snippets from EE code snippet library are compatible only with EE4. They are not compatible with EE3.

They can be added into a functions plugin or into your WordPress theme’s functions.php file.


September 15, 2016 at 4:41 am

Hi Josh

You don’t say if there is equivalent sample code for EE3?


  • Support Staff

September 15, 2016 at 10:01 am

There isn’t equivalent sample code for EE3. If you want to use the sample code from our library you’ll need to upgrade to EE4.


September 15, 2016 at 10:21 am

Is there an upgrade path guide somewhere? My concern is that this is a fairly heavily customised installation and there could be a huge amount of work to move. Also when I initially looked into this some time back there were features missing on EE4 though I imagine this is less likely to be a problem now.


September 15, 2016 at 10:21 am

Any ‘roadmap’ on EE3 / EE4 too? (e.g. how long EE3 will continue to be supported)


  • Support Staff

September 15, 2016 at 10:39 am

You’ll find some information how to plan for and migrate to EE4 here:

There’s also some information with feature set comparisons between the two and phasing out support for EE3 here:

The support post ‘Invoice fee surcharge on EE3’ is closed to new replies.

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Support forum for Event Espresso 3 and Event Espresso 4.
Documentation for EE3 and EE4
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Status: closed

Updated by  Josh 3 years, 9 months ago ago

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