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Re: invalid or missing authorization client id

by in API Developer Support
‎02-14-2022 11:05 AM
2 Kudos
‎02-14-2022 11:05 AM
2 Kudos
Hi, I'm still having this error 400 - Unknown or invalid client_id.... I did everything according to the instructions https://contactform7.com/constant-contact-integration/ I use Contact 7 Updated plugins Error will remain ... View more
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