Salesforce This related list cannot be displayed because it is not in the current page layout

Related list in Salesforce is very useful and simple to use. Child objects fromLookup Relationship or Master-Detail Relationship will show in the Parent object page layout. But, too many related list also not good as it will create a long scroll down on the parent page. So, just use it wisely.

I have a user who do not able to see a related list of custom object, while her peers able. Here are few items to start look into:

• Check user Profile, if she has read permission to that object [child object]. If not, go to user detail and check Permission Set assigned to that user if hasread permission to that object.
• Check for anyRecord Type for the parent object, if yes, what is the record type for the particular parent record.
• Check Page Layout Assignmentin the parent object and which page is assigned to that parent record
• Make sure in parent object Page Layout include childobjectas related list