Hi all,
I'm having issues activating out test (non-Contoso) environment MPOS all distribution schedules are syncing without issues but on activation we receive DA3001 error

Our RetailServer/v1/$metadata returns the metadata perfectly and we are running on a sefl signed certificate created in IIS
Within the even viewer we have the following errors
1.
The Retail Server Request with request id '###############' and request url 'https://######:#####/###RetailServer/LogOn' failed. Error: .
2.
Dynamics-Error: LoginViewModel ActivateDevice Logon failed
ErrorMessage: ;
ErrorCode: string_29278;
ErrorObject: '{"_canRetry":false,"_errorCode":"string_29278","_errorMessage":"","_commerceException":null,"_formatData":[],"_extraData":null,"_clientErrorCode":"","_errorMessageDetails":[]}' 1580382033617mS
3.
The Retail Server Request with request id '###############' and request url 'https://######:#####/###RetailServer//LogOff' failed. Error: .
Is this config related? of connection to the retailserver access?
many thanks
Alex