Recently I ran into the following error when import a large Catalog into Commerce Server using both the Catalog Manager and the BizTalk Server Commerce Server Catalog Adapter.
"The import failed because the import file is larger than the maximum size allowed on your server. Contact your system administrator."
The fix is simple and requires a change to the Web.Config file of the Commerce Server Catalog Web Service. The default max file size is 200 MB.
Simply update the following attribute: <catalogWebService maxUploadFileSize="204800" /></catalogWebService>
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