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Manjunath MManjunath M 

Send Email and Log a Call Actions not showing on Activity History Related List in Lightning

Send Email and Log a Call Actions not showing on Activity History Related List in lightning.
I have added on page layout related list.
Pleas help me out regarding this.
SandhyaSandhya (Salesforce Developers) 

Check for below points.

1.On the Page Layout editor, go to the "Salesforce1 and Lightning Experience" section and click on "override the predefined actions" if you see text in that section.
On the top of the Page Layout edit page, under the save button, click on Salesforce1 Actions. This will show you all the available actions. 
Add "Log a Call" and "Send an Email".

2.When you add actions "Log a Call" and "Sent an email" on page layout, try to change Global Actions. Select "Log a Call" ->Edit  and chose there Call Task Type  in Record Type field. Then go to Set Up-> Profile -> chose one determined profile ->  find field Tasks -> add there Call Task Type

3.Make sure that Email Deliverability is set to "All Email." When our Email Deliverability was set to System Email only, the Email quick action would automatically be removed from the page layouts we added it to.

Refer below salesforce help article.

Please mark it as solved if my reply was helpful. It will make it available for other as the proper solution.
Best Regards
Manjunath MManjunath M

Hi Sandhya,

Thanks for the reply.
I had tried all the things you mentioned, but still not showing on Activity History Related List in Lightning.