Question

Difficulty: MediumLead Lifecycle and Lead Conversion

A Salesforce administrator at an enterprise telecommunications provider is configuring custom field mapping for lead conversion. The administrator needs to map a custom Lead picklist field named 'Bandwidth Requirement' to a custom field on the Account object. However, during setup in Lead Custom Field Mapping, the target Account field does not appear in the dropdown list for selection. Which of the following explains why the Account field is unavailable for mapping?

  1. The target field on the Account object is a Lookup relationship field type.Answer
  2. B
    The target field on the Account object was created without linking it to an active Sales Process.
  3. C
    The picklist values of the custom Lead field were not assigned to the Account object's default record type.
  4. D
    The lead field mapping must be initiated from the Account field settings rather than Lead Object Manager.

Answer

The target field on the Account object is a Lookup relationship field type.
In Salesforce, Lead Custom Field Mapping requires compatible data types between source Lead fields and target Account, Contact, or Opportunity fields. A custom Lead Picklist field can only be mapped to a custom Picklist or custom Text field on the Account object. It cannot be mapped to a Lookup relationship field, causing the Lookup field to be omitted from the mapping selection dropdown.

Step-by-Step Solution

1
Analyze Lead Custom Field Mapping requirements in Salesforce.
Lead custom field mapping requires exact or compatible data type matching between source Lead custom fields and target Account, Contact, or Opportunity custom fields.
Salesforce enforces strict data type compatibility when converting leads.
2
Evaluate data type compatibility for a custom Picklist field.
A custom Picklist field on the Lead object can map to a target custom Picklist (single-select) or Text field, but cannot map to Lookup, Roll-Up Summary, Formula, or Auto-Number fields.
Lookup fields store 18-character Salesforce record IDs rather than string/picklist values.
3
Identify why the field is missing from the selection dropdown.
Because Lookup relationship fields are incompatible with Picklist source fields, Salesforce automatically filters them out of the mapping dropdown list.
Only compatible target custom fields are rendered in the mapping interface.

Key Concept

Data type compatibility rules in Salesforce Lead Custom Field Mapping
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