Activites(ACTVT)

ACTVT	TEXT	ACTVT	TEXT
01	Create or generate	52	Change application start
02	Change	53	Display application start
03	Display	54	Display application archive
04	Print, edit messages	55	Change application archive
05	Lock	56	Display archive
06	Delete	57	Save archive
07	Activate, generate	58	Display takeover
08	Display change documents	59	Distribute
09	Display prices	60	Import
10	Post	61	Export
11	Change number range status	62	Create automatic Ledger
12	Maint.and gen.change document	63	Activate
13	Initialize number levels	64	Generate
14	Field select.:Generate screen	65	Reorganize
15	Field select.:Assign table	66	Refresh
16	Execute	67	Translate
17	Maintain number range object	68	Model
18	Deliveries from coll. proc.	69	Discard
19	Invoices from coll. proc	70	Administer
20	Transport without translation	71	Analyze
21	Transport	72	Plan
22	Enter, Include, Assign	73	Execute Digital Signature
23	Maintain	74	Revoke approval
24	Archive	75	Remove
25	Reload	76	Enter
26	Change customer account group	77	Pre-enter
27	Display totals records	78	Assign
28	Display line items	79	Assign Role to Composite Role
29	Display saved data	80	Print
30	Determine	81	Schedule
31	Confirm	82	Supplement
32	Save	83	Counter confirm
33	Read	84	Settle
34	Write	85	Reverse
35	Output	86	Rebook
36	Extended maintenance	87	Return
37	Accept	88	Exercise
38	Exercise	89	Force Posting
39	Check	90	Copy
40	Create in DB	91	Reactivate
41	Delete in DB	92	Create from Template
42	Convert to DB	93	Calculate
43	Release	94	Override
44	Flag	95	Unlock
45	Allow	96	Reject
46	Merge	97	Set
47	Borrow	98	Mark for release
48	Simulate	99	Generate invoice list
49	Request	DL	Download
50	Move	UL	upload
51	Initialize

You can also find these in TACT table in se16/sm30.

No doubt at all a ideal security admin should memorize this activities.If it is hard to remember then at least remember these 15 activities ..... create,change,display,download,upload,execute,assign,print,lock,delete,
maintain,archive,write,import,export .

TACT Table

TACT==> This table for all activities 

TACTZ==> This table for only activities we maintained in authorization objects .