Is this possible? Approval Procedures

Question

Hi All, just wanted to know to what extent this is possible with standard SAP Business One. I am sure the digital signature part isn't possible, but what is and how would you be able to set this up? Thanks in advance, Adele
When the Purchase Order is created in SAP, the user will enter the item code and quantity. After this has been completed, and they press update, SAP must first do the following:
1)      Check the quantities in that branches warehouses (if the user is in PTA, then it must check all PTA warehouses, except the Holding warehouse). This is configured using the Location on the warehouse;
2)      Check the maximum stock level for the branch, and if the current stock holding plus the quantities on the purchase order exceeds the maximum stock level, it must prompt the user to reduce his stock on the purchase order;
3)      Check the purchase price that the user has filled in and notify the user if the difference is greater than 15% (more or less) than the Standard Price in the system.
SAP must then decline the purchase order if:
1)      Ordered quantity plus the stock in the warehouses exceeds the maximum stock level;
2)      Purchase price is more than 15% different than the Standard Price (this will then need to prompt [User A] to verify the price they are paying);
If the above is fine, then SAP must send the Branch Manager a notification to go to the specific PO to approve it.
Once the Branch Manager has approved it, the following people must receive a notification to approve the PO:
1)      Less than R10,000 - [User Z]
2)      More than R10k but less than R50k - [User M]
3)      If more than R50k - [Both User M and User Z]
This approval must be in the form of a digital signature that gets placed on the PO and can be printed out.
There must be an override code in case [User M] is not available to release the Purchase Order. [User Z] must then be able to view the Purchase Order and approve it, but it must tell her that it exceeds her authorisation limit, and it must give the option to use the override code and state a reason why the code was used.
[User M] must get a notification of all Purchase Orders approved with the override code.
Once the Purchase Order has been approved, a notification must be sent to the Person who created the PO.
The purchase must not be able to be printed out until it has been approved.

Answer 1

I believe most of your goals could be reached by user query approvals.  You need to created several different Approval Stages and Templates to complete the task.  I don't think one approval for all is possible.
Thanks,
Gordon