To create a lead capture form on a landing page and create a Lead record in Salesforce, you can use either AMPscript or SSJS. AMPscript can be used for interacting with Salesforce, and SSJS can handle form processing. Alternatively, SSJS can handle the entire process, including creating the Salesforce record.
* AMPscript and SSJS Combination: You can use AMPscript to interact with Salesforce APIs to create records and SSJS for form handling.
* SSJS for Full Functionality: SSJS can handle both the form submission and the interaction with Salesforce to create Lead records.
1: Salesforce AMPscript and SSJS Integration

In the provided AMPscript, the IF statement checks the length of the @point variable and sets @value accordingly. Since x = 'Tacos' has a length of 5, it meets the first condition Length(@point) > 1, which sets
@value to 1. Subsequent conditions are not evaluated because the first condition is already true.
* AMPscript IF-ELSEIF Example:
%%[ SET @point = RequestParameter('x') SET @value = 5 IF Length(@point) > 1 THEN SET @value = 1 ELSEIF Length(@point) > 2 THEN SET @value = 2 ELSEIF Length(@point) > 3 THEN SET @value = 3 ELSEIF Length(@point) > 4 THEN SET @value = 4 ENDIF ]%% Salesforce AMPscript Documentation

To export send data to their SFTP, the following automations can be used:
* Tracking Extract > File Transfer (B)- This automation extracts tracking data and then transfers the file to an SFTP location.
* Query (Data Views) > Data Extension Extract > File Transfer (C)- This automation queries the data views to gather the necessary data, extracts the data from the data extension, and then transfers the file to an SFTP location.
References:
* Salesforce Marketing Cloud Tracking Extract Activity
* Salesforce Marketing Cloud File Transfer Activity

If the email send's tracking information is not available in Sales Cloud, the next step is to confirm that the audience was a Salesforce Data Extension containing the appropriate Salesforce ID (SFID).
* Salesforce Data Extension: Ensure that the data extension used for the send is a Salesforce Data Extension that includes the appropriate SFID for each subscriber. This is crucial for the integration to correctly match the tracking data with the Salesforce records.
1: Salesforce Marketing Cloud Connect Troubleshooting

After using themessageDefinitionSendsREST API endpoint to send a triggered send email, and receiving a
202 (success) response code, the developer can validate if the email was successfully sent by using the messageDefinitionSend/key:(key)/deliveryRecordsREST endpoint with the GET method. This endpoint provides delivery records and allows verification of the email's delivery status.
References:
* Salesforce Marketing Cloud REST API Reference
* Triggered Send Email Validation