Creating a product field of type Link creates a nvarchar(255) in the database, but links can be up to 2048 characters, so when programatically setting links with that are longer, it will fail.
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Field type link and length
                                                            
                        Bjørn Ingebrigtsen
                    
                    
                                                    
                            
                                                    
                        							
                                                    
                                                    
                            
                            
                            
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							Nicolai Pedersen 
							
						
						
															
								
								
															
															
															
								
								
								
						
								Posted on 11/06/2025 23:19:51
							
							
						This post has been marked as an answer
						Hi Bjørn
I can see that. You can change the field directly in the database - that should work all the way through.
I will send this to Søren - PM for PIM and see if we should change this.
Thanks, Nicolai
									Votes for this answer: 1
								
																	
								
							
					
                                                            
                            
                        
							Søren Jensen 
							
						
						
								Posted on 12/06/2025 13:41:03
							
							
						Hi Bjørn,
Created feature request (24594), to make change on this field type.
Workaround is, as NP mention, that you change it directly in database
/Søren
                                                        
                        
							Bjørn Ingebrigtsen 
							
						
						
															
								
								
															
															
															
								
								
								
						
								Posted on 12/06/2025 13:57:39
							
							
						Yes we ended up creating a Long text field and then later changing the field type to Link in the database, and it works.
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