The link can be rejected by the system in two cases 
  -  Incorrect link. Before adding it to the ad click the link and check whether it connects to the existing page of the goods/services advertised. Ensure that the link conforms to the selected format of ads. 
   -  Link contains a prohibited redirect.If the link is given by any partner network you should apply to such network for clarifications. 
   
 If it is your redirect then you should file a request for including it in the approved list of redirects and enter into the partnership agreement with the myTarget in order to undergo moderation. For this:  
 -  Submit documents of the legal entity. 
   -  File a request for entering into an agency agreement. 
   -  Describe purposes you plan to use a redirect for. 
   -  Provide examples of advertised materials.