Message type: E = Error
Message class:  UXS - Messages Package UXS 
Message number: 201
Message text: Invalid URI (&)
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message UXS201 "Invalid URI (&)" typically occurs in the context of SAP Gateway or when working with OData services. This error indicates that there is an issue with the URI (Uniform Resource Identifier) being used in a request, which is not formatted correctly or contains invalid characters. Causes: Malformed URI: The URI may contain illegal characters or may not be properly encoded. Incorrect Service Configuration: The OData service may not be correctly configured, leading to an invalid endpoint. Missing Parameters: Required parameters in the URI may be missing or incorrectly specified. Special Characters: The presence of special characters that are not properly encoded can lead to this error. Versioning Issues: If the service is expecting a specific version of the OData protocol and the request does not comply, it may result in this error. Solutions: Check the URI Format: Ensure that the URI is correctly formatted. It should follow the standard URI structure and should
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
UXS200 ---------------------- CL_UXS_XML_CONTAINER_PROXY -----------------------
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UXS157 XSLT Program Name: &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UXS202 XML does not implement IF_UXS_XML_CONTAINER
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UXS203 XML is not a valid XSLT
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.