DATEV Authentication Error: HTTPS and HTTP Configuration Guide

If your Memtime app shows this error, you can follow the steps below:

"The HTTPS certificate is invalid.
http://srv0000example:54852/datev/api/iam/v1/Users/me seems to be working. 
You can use this URL instead."

Use the correct URL format

The most important rule:

1. HTTPS always uses port 54852
2. HTTP always uses port 54854

Please do not mix them.

1. HTTPS (with "S")

Use this format:

https://srv0000example:54852/datev/api/iam/v1/Users/me

⚠️ HTTPS always uses port 54852. ⚠️

Rules:

1. Must start with "https://" - with an "S"
2. Must use port 54852
3. If you use a different port, it will not work
   
   
   

2. HTTP (without "S")

Use this format:

http://srv0000example:54854/datev/api/iam/v1/Users/me

⚠️ HTTP  always uses port 54854.

Rules:

1. Must start with "http://" - without an "S"
2. Must use port 54854
3. If you use a different port, it will not work

3. Special case: DATEV ASP

If DATEV is hosted via a DATEVasp server, the address always remains:

http://localhost:58454

⚠️ HTTP  always uses port 54854

4. Run the DATEV-API connection check

If you are sure that you've used the correct URL, and that the endpoints you used in it are also correct, please make sure to do the following DATEV-API Connection Check:

🔗 DATEV API Connection Check

5. Still not working?

If, after completing all of the above steps, the Memtime app still displays an error message, please reach out to us at support@memtime.com and include the following:

1. A screenshot of the error message in Memtime
   
   

2. A screenshot of the Connection Check like it's shown below: