It's a common practice to reuse schemas / types within your BizTalk solution. Lately, I've encountered an issue regarding this. Here you can find a simplified example and a solution to the problem.
Assume you have two reusable schemas (no dependencies between them):
Now you want to create a "Person' schema in the https://schemas.xx.eu namespace, by reusing the previous schemas.
- First you need to import the Address schema
- Secondly you need to import also the ContactInformation schema. This results in the error:
"The namespace of the schema you are trying to add clashes with one of the namespaces already declared. Please choose another schema."
Although, in XSD this is not a limitation. So I've tried to work around the BizTalk Schema Editor and opened the XSD as an XML file. I've manually added the XSD import of the ContractInformation schema: