My enviroment is a OnPrem Sharepoint 2019 Farm.
I have the following problem:
Within a Webservice call i try to use the value of a lookup field as a reference in "AddUserToGroup". Every time i use the value of the lookup field i get a SOAP-envelope-error.
I have detailed protokoll acitvated and can see that the variable is filled with the wright value as text (the name of the Sharepoint group).
If I enter the name of the group "by hand" it returns no error.
I even worked with a regex (to rmove ID;#) and lookup to populate the variable, but the same error comes up.
Has anybody ever had the same issue or an idea how to solve the issue?