diff --git a/backend/src/main/resources/i18n/messages.properties b/backend/src/main/resources/i18n/messages.properties
index a40305df3..0d76aff03 100644
--- a/backend/src/main/resources/i18n/messages.properties
+++ b/backend/src/main/resources/i18n/messages.properties
@@ -541,6 +541,7 @@ message.must-be-number=Must be a number.
 message.name-must-be-unique=Name must be unique.
 message.uri-valid-format=URI must be valid format.
 message.id-unique=ID must be unique.
+message.name-unique=Service provider name must be unique.
 message.array-items-must-be-unique=Items in list must be unique.
 message.valid-duration=Must be a valid duration.
 message.valid-name=No special characters or whitespace allowed.
diff --git a/ui/src/app/metadata/domain/source/definition/SourceDefinition.js b/ui/src/app/metadata/domain/source/definition/SourceDefinition.js
index 70e686ed7..a448d2d03 100644
--- a/ui/src/app/metadata/domain/source/definition/SourceDefinition.js
+++ b/ui/src/app/metadata/domain/source/definition/SourceDefinition.js
@@ -24,6 +24,7 @@ export const SourceBase = {
 
         const sources = current ? data.filter(s => s.id !== current.id) : data;
         const entityIds = sources.map(s => s.entityId);
+        const names = sources.map(s => s.serviceProviderName);
         const pattern = group?.validationRegex ? new RegExp(group?.validationRegex) : null;
 
         return (formData, errors) => {
@@ -32,6 +33,10 @@ export const SourceBase = {
                 errors.entityId.addError('message.id-unique');
             }
 
+            if (names.indexOf(formData.serviceProviderName) > -1) {
+                errors.serviceProviderName.addError('message.name-unique');
+            }
+
             if (pattern && !pattern?.test(formData.entityId)) {
                 errors.entityId.addError(translator('message.group-pattern-fail', {regex: group?.validationRegex}));
             }