An error occurred when requesting "xero_contact" from an invalid declaration of the "BrandingTheme" field.

I reviewed the API, and the patch makes sense.

drupal.org uses GitLab CI now and xero api module has been converted to its use. That means patch files won't be run through tests. I created an issue fork.

Can you commit your patch to the issue fork branch?

Changes to Needs work because of failed test.

I resolved the test failures in the merge request. I'll let this sit for a week or so.

Automatically closed - issue fixed for 2 weeks with no activity.