Changing from Bullhorn customer A to B

Dear Paul,
We have been using your plugin in various websites, trying to set up a stable constellation that can be used for various customers.
We use the well tested and stable Enfold theme from Kriesi.
An experienced developer of a professional WordPress agency installed it. We work on this together.
I call the companies here ABC and DEF.
We installed it for recruitment agency ABC first. We made an ‘applications website for their customer DEF.
It worked well. There were some extra requests that we wanted to look at later (an extra upload field for documents, segmentation per city/work department etc).
At some point the end ABC’s customer/end-user DEF wanted to have the website and use it with their own Bullhorn account. Their Bullhorn account seems slightly different being an Bullhorn enterprise account (they are a finance/admin company, ABC is a recruitment company).
The situation we have now is that the syncing with the client ID en Client secret does not works table/go too well.
We get errors when we use the DEF client ID/Secret.
At first we would just get those errors when connecting/syncing the plug-in and then we used the previous ABC ID/Secret and suddenly it synced; the vacancies appeared.
When applying on a vacancy then through the website it would give again an error notification.
Changing from DEF Client ID/Secret to HNR (and back) somehow did the job.
I have spend loads of hours talking to Bullhorn, they keep referring to: ‘ID/Secret works (in their testing tool) it must be the plug-in, we do not support that’.
Customer’s patience is eroding and I do not know what to do now, please help us out.

Kind regards,
Henning van den Akker (independent consultant) & John Wiseman (developer)

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