The Consolidation dimension is used to store data at different levels of consolidation, such as Entity Input, Entity Currency, Parent Currency, etc. The dimension uses a separate member for data from an entity's level-zero descendants, which is called the Contribution member. This member shows the data from the children entities before any adjustments or eliminations are applied. The other statements are not correct descriptions of the Consolidation dimension. The dimension does not allow users to view data in the parent currency (this is done by the Currency dimension), to see input versus journal adjustment data (this is done by the Data Source dimension), or to store non-controlling interest and joint venture data (this is done by the Ownership dimension).Oracle Financial Consolidation and Close 2023 Implementation Essentials Study Guide, page 15-16; [Oracle Financial Consolidation and Close Cloud Service Administrator's Guide], page 2-8.

The statement that is false about when Intercompany Data is enabled is: All parent members in the Account dimension must have a Solve Order value of 58. This statement is not true because the Solve Order value of 58 is only required for the parent members of the Movement dimension, not the Account dimension. The Solve Order value determines the order of calculation for members with formulas. The Movement dimension uses a Solve Order value of 58 to ensure that the movement calculations are performed after the account calculations. The other statements are true about when Intercompany Data is enabled. Tracking intercompany eliminations is optional, intercompany accounts are assigned plug accounts, intercompany entities must be children of the same parent for eliminations, and the Intercompany Entity attribute must be set to Yes to store intercompany data.Oracle Financial Consolidation and Close 2023 Implementation Essentials Study Guide, page 18-19; [Oracle Financial Consolidation and Close Cloud Service Administrator's Guide], page 2-10.

If Entity currency and Parent currency Closing Balance data does not exist in the prior period, then the Ending Rate for the prior period is used.
Opening balance is calculated from the prior period's Closing Balance.
https://docs.oracle.com/en/cloud/saas/financial-consolidation-cloud/agfcc/built_in_calculations.html